Grain Boundary Nucleation of Proeutectoid Ferrite in an Fe-C-Ni Alloy
スポンサーリンク
概要
- 論文の詳細を見る
The nucleation kinetics of proeutectoid ferrite at austenite grain boundaries were studied in an Fe-C-Ni alloy by observing ferrite particles on fracture facets along prior austenite grain boundaries. Whereas a large scatter in the ferrite particle numbers was observed among grain boundary facets, the average particle number appeared to increase with isothermal holding time. The particle number measured on the polished surface of specimens applying Schwartz-Saltykov analysis also increased with holding time. Diffusion-controlled growth of a ferrite nucleus was simulated incorporating Gibbs-Thomson capillary effect to indicate that the time for a nucleus to grow to a detectable size was insignificantly small. These results seem to show that ferrite nucleation occurred in a sizable time range and continuous nucleation, rather than site saturation (instantaneous nucleation), may account better for ferrite nucleation kinetics at temperatures of measurement. The difference in ferrite particle numbers between the two methods of measurement is discussed in terms of the possible omission of small particles and non-sphericity of ferrite particles <I>etc.</I>
- 社団法人 日本鉄鋼協会の論文
- 1999-06-15
著者
-
KOBAYASHI Y.
Department of Obstetrics and Gynecology, Hokkaido University School of Medicine
-
ENOMOTO M.
Department of Obstetrics and Gynecology, Nara Medical University
-
Enomoto M
Ibaraki Univ.
関連論文
- A-24 Periventricular Leukomalacia after Acute Hemorrhagic Hypotension in the Chronically Instrumented Fetal Sheep.
- Three cases of holoprosencephaly : Abstracts of Papers Presented at the 29th Annual Meeting of the Japanese Teratology Society, Yamagata, Japan July 13 - 14
- Magnetic and Metal-Insulator Transitions in β-Na_CoO_2 and γ-K_CoO_2 : NMR and Neutron Diffraction Studies (Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties)
- Impurity Effects on the Superconducting Transition Temperature of Na_zCoO_2・yH_2O (Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- ^Co-NMR Knight Shift of Superconducting Three-Layer Na_xCoO_2・yH_2O(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Three-dimensional Morphology and Growth Kinetics of Intragranular Ferrite Idiomorphs Formed in Association with Inclusions in an Fe-C-Mn Alloy
- Suppressive effects of dominant negative ras mutant N116Y on′ transformed phenotypes of human bladder cancer cells.
- P-16. Effects of feeding and cholecystokinin-octapeptide (CCK-8) administration on the somatotropic axis of goats around weaning(Abstracts of the International Symposium on Recent Advances in Animal Science(IS-RAAS),Joint meeting of 2^ IS-AS and 3^
- Three-dimensional Observation of Ferrite Plate in Low Carbon Steel Weld
- The Changes in Leptin Depend on Estrogen And Catecholamine After Training
- EFFECTS OF PERIODICAL FLUID INTAKE ON THIRST AND VOLUNTARY DEHYDRATION DURING EXERCISE
- Transport Properties in Co-Al-O and Fe-Al-O granular systems
- Three-dimensional Morphology and Influence of Mo Segregation on the Transformation Behavior of Proeutectoid Ferrite in an Fe-C-Mo Alloy
- Pertussis toxin-sensitive signal controls the trafficking of′ thymocytes across the corticomedullary junction in the′ thymus.
- Electron Microscopic Observations on the Cultured Human Follicular Oocytes and Granulosa Cells
- Calculation of the Equilibrium Shape of TiN Particles in Iron
- Grain Boundary Nucleation of Proeutectoid Ferrite in an Fe-C-Ni Alloy
- An Immunohistochemical Study of the Basement Membrane of the Rat Esophagus in Association with Malignancy
- 9pSE-12 Defects and impurities in nanosized carbon system during conversion of nanodiamonds to spherical onions